Timothy C. Dearman has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
Abstract: A tool for use in preparing two members to be welded to one another has a body provided with legs adapted to straddle a gap between the two members and a bridge joining corresponding ends of the legs. The bridge has an elongate slot therein through which extends a drawbar that terminates at one end in a hook which is capable of underlying and engaging the lower surface of only one of such members. The drawbar is adjustable to cause the hook to move toward the bridge and thereby effect relative adjustment of the confronting edges of the two members. The drawbar preferably carries a gauge which may be used to ascertain the relative positions of the lower surfaces of the two members.
Abstract: A pipefitter's square holder comprises a body having adjacent its side edges a plurality of ledges each of which is capable of supporting one leg of a square. Inwardly of each side edge is an abutment. A pair of clamp members is mounted on the body for movements relative to the latter and to one another between positions adjacent selected ones of the ledges, such clamp members being capable of removably clamping a square against the abutment associated with each of such ledges.
Abstract: A pipe welder's aligning tool for use in joining two pipe members end to end comprises a clamp having a pair of jaws movable toward and away from one another so as separably to clamp one pipe member adjacent its end. The jaws carry supports of such length as to extend beyond the one end of the clamped pipe to provide support for the confronting end of a second pipe member that is to be joined to the clamped pipe. To enable the supports to function properly regardless of the diameters of the pipes that are to be joined, the supports are adjustable relatively to their associated jaws. One of the jaws may be mounted on an elongate member which is adjustable to enable the tool to be used on pipes of greatly differing diameters.
Abstract: Apparatus and methods for use in aligning and welding in end-to-end relation a pair of members such as pipe sections or a cylindrical vessel and closure wall and wherein one of the members is subjected to a clamping force adjacent the end to be welded to produce a predetermined configuration at that end. The other member is supported with that end to be welded confronting the adjacent end of the first member. A clamping force then may be applied to the second member so as to conform its configuration to one corresponding to that of the end of the first member. While maintaining the two members clamped, their positions are adjusted relatively to one another to locate their adjacent ends in a predetermined manner, following which the two members are moved relatively in a direction toward one another to a welding position in which the welding operation may be completed.
Abstract: A tool for use by pipefitters in joining a length of pipe to a fitting in which one end of the pipe is accommodated with a predetermined spacing between the end of the pipe and an internal shoulder within the fitting. The tool comprises a pair of jaws which may be clamped on the pipe when the end of the latter abuts the shoulder and includes shims movable from a position spaced from the pipe toward the latter to occupy a position between the jaws and the adjacent free end of the fitting, thereby providing for a predetermined spacing between the free end of the pipe and the shoulder of the fitting. One of the clamping jaws is capable of substantial adjustment relative to the other to enable the tool to be used on pipes and fittings of considerably different size.
Abstract: A fixture for locating and holding a fitting in position to be welded to a base member comprises a body for clamping the fixture, adjustable supporting legs for securing the body in a selected position at one side of the base member, and an anchor device carried by said body and having retainer fingers movable through the fitting and an opening in the base member for engagement with the opposite side of the latter. The retainer fingers are movable between retracted and projected positions.
Abstract: A tool for use by pipefitters in joining a length of pipe to a fitting in which one end of the pipe is accommodated with a predetermined spacing between the end of the pipe and an internal shoulder within the fitting. The tool comprises jaws which may be clamped on the pipe when the end of the latter abuts the shoulder and includes shims movable from a position spaced from the pipe toward the latter to occupy a position between the jaws and the adjacent free end of the fitting, thereby providing for a predetermined spacing between the free end of the pipe and the shoulder of the fitting.
Abstract: A reforming pipe clamp comprises a pair of rigid arcuate members joined at corresponding ends to form an annulus adapted to encircle a pipe adjacent one end thereof, the inside diameter of the annulus being greater than the outside diameter of the encircled pipe. The annulus has a plurality of circumferentially spaced, radially adjustable force applying members which are engageable with the encircled pipe for reforming the pipe. The annulus carries circumferentially spaced supports capable of projecting beyond the end of the encircled pipe to provide support for one end of a confronting pipe that is to be joined to the encircled pipe. The supports are movable from their supporting position to a second position in which the entire circumference of the joint between the two pipes is accessible to a welder.
Abstract: A clamping assembly particularly useful for aligning abutting ends of pipe sections to form a mitered joint. A plurality of individual clamp assemblies are clamped in circumferentially spaced positions upon one pipe section by a circumferentially extending chain, each clamp assembly having an elongate jack arm which can be clamped in selected positions of circumferential and axial adjustment upon the one pipe section so that the jack arms may be projected to different axial distances from the chain into operative engagement with a second pipe section lying in a plane inclined to axis of the one pipe section.